Agham Posadas

The University of Texas at Austin — United States

Materials Science · Physical Sciences

38h-index4.5kcitations244works1.42yr avg
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Research Topics

Electronic and Structural Properties of Oxides(136), Semiconductor materials and devices(127), Ferroelectric and Piezoelectric Materials(68), Magnetic and transport properties of perovskites and related materials(50), Photonic and Optical Devices(26)

Publications244 total

Tunable Ferroelectric Acoustic Resonators in Monolithic Thin-Film Barium Titanate
arXiv (Cornell University)·2026Open Access
Tunable Ferroelectric Acoustic Resonators in Monolithic Thin-Film Barium Titanate
ArXiv.org·2026Open Access
Small effective mass deep all-oxide quantum wells based on <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>BaSn</mml:mi> <mml:msub> <mml:mi mathvariant="normal">O</mml:mi> <mml:mn>3</mml:mn> </mml:msub> </mml:mrow> </mml:math>
Physical review. B./Physical review. B·2026
Thick BaTiO <sub>3</sub> Epitaxial Films Integrated on Si by RF Sputtering for Electro-Optic Modulators in Si Photonics
WORLD SCIENTIFIC eBooks·2025
Zintl layer formation during perovskite atomic layer deposition on Ge (001)
WORLD SCIENTIFIC eBooks·2025
A Chemical Route to Monolithic Integration of Crystalline Oxides on Semiconductors
WORLD SCIENTIFIC eBooks·2025
Crystalline SrZrO <sub>3</sub> deposition on Ge (001) by atomic layer deposition for high- <i>k</i> dielectric applications
WORLD SCIENTIFIC eBooks·2025
Enhancement of electro-optic response in BaTiO3 films integrated on Si via heating and cooling rate control
Communications Materials·2025· 3 citedOpen Access
Crystal domain orientation control of epitaxial BaTiO3 films integrated on silicon for large electro-optic response
Applied Physics Letters·2025
Defect enhancement of Er emission in single crystal Er2O3
Applied Physics Letters·2025Open Access
Asymmetric metallic quantum well <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Al</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:mtext>−</mml:mtext><mml:mi>Al</mml:mi><mml:mtext>−</mml:mtext><mml:mi>Si</mml:mi></mml:mrow></mml:math>
Physical Review Materials·2025· 1 cited
High‐Q Monolithic Ring Resonators in Low‐Loss Barium Titanate on Silicon
Laser & Photonics Review·2025· 4 cited
Ferroelectrics for emergent silicon-integrated optical computing
2025
BaTiO3/TiO2 Hybrid Metasurface for Free-space Electro‑optic Modulators
2025
High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon
2025
High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon
2024· 1 cited
High-Q Ring Resonators in Low-Loss Monolithic Barium Titanate on Silicon
2024Open Access
Handbook of Molecular Beam Epitaxy of Oxide Materials
WORLD SCIENTIFIC eBooks·2024
Publisher’s Note: “Electro-optic effect in thin film strontium barium niobate (SBN) grown by RF magnetron sputtering on SrTiO3 substrates” [J. Appl. Phys. 136, 013102 (2024)]
Journal of Applied Physics·2024Open Access
Electro-optic effect in thin film strontium barium niobate (SBN) grown by RF magnetron sputtering on SrTiO3 substrates
Journal of Applied Physics·2024· 5 citedOpen Access
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Frequent Co-authors

Alexander A. Demkov(40), John G. Ekerdt(14), David J. Smith(13), Martin D. McDaniel(11), Charles Ahn(9), Thong Q. Ngo(9), Patrick Ponath(7), Kristy J. Kormondy(6), Sirong Lu(6), Edward T. Yu(5), Xia Hong(5), Martha R. McCartney(5), J. Bruley(4), Jean Jordan‐Sweet(4), Chengqing Hu(4), Stefan Zollner(4), Tobias Hadamek(4), Miri Choi(4), Hosung Seo(4), Chungwei Lin(4)